If a condenser coil of an air-cooled container refrigeration system becomes dirty and requires cleaning, what would be an acceptable method of cleaning?

Official USCG Answer & Rule Citation

Correct Answer: Option A — high-pressure water wash

Container refrigeration air-cooled condenser coils accumulate dust and salt deposits. A controlled high-pressure water wash effectively clears fin passages without damaging delicate aluminum fins or copper tubing.

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